

 header>span{
    
    color: white;
    position: fixed;
    left: 7px;
    top: 7px;
    width: 40px;
    height: 40px;
    z-index: 1;

 }
 video{
     width: 100%;
     height: 100%;
     background-color: black;
     position: relative;

     .video-control{
      width: 100px;
      height: 100px; 
      position: absolute;
      left: 0;
      right: 0;
      top: 0;
      bottom: 0;
      margin: auto;
    
      z-index: 999;
      
      text-align: center;
     
      .icon-icon_play{
      font-size: 70px;
      color: pink;

      }

     }

 }
// 内容区域
